Crossed Cylinders

Toric optics and mirrors, bikonvex, bikoncave and convexo-concave

Special optics per customer requests and requirements.

Correct Measurements | Requirements in European Pharmacopoeia (EP10)

Checking spectrometer accuracy with Certified Reference Materials

Optical immersion probes and measuring cells for spectroscopic analysis in laboratory, pilot plant and process.

Online configurator for optical immersion probes and measuring cells

Integrated Spectroscopy Solutions

Smart Sensors for System Integrators

Recertification of reference materials in the Hellma calibration laboratory (DIN ISO 17025)

Maintenance of fiber optic systems

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Crossed Cylinders

Radius range

Length

Width

Tolerances

Radius variance up to 1000 mm: ± 1%, ± 5% beyond 1000 mm, up to ± 0.01 mm radius accuracy on request (depending on geometry)
Middle Thickness: ± 0,01 mm
Length: ± 0.1 mm
Width: ± 0.1 mm
Irregularity: λ/4 per 10 mm at 633 nm, reduced to λ/10 on request, optionally available with documentary proof of certification up to maximum diameter of 150 mm (depending on radius)
Edge thickness variance: up to ± 0.1 mm (centration), up to 1 μ on request

Higher precision on request.

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